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. Author manuscript; available in PMC: 2016 Jun 1.
Published in final edited form as: Infect Dis Clin North Am. 2015 Jun;29(2):341–355. doi: 10.1016/j.idc.2015.02.007

Figure 1.

Figure 1

Reported cases of tick-borne rickettsial infections in the U.S., 1987-2013. The cumulative area plots demonstrate the overall burden of infection during this time interval. HGA – human granulocytic anaplasmosis; HME – human monocytic ehrlichiosis; spotted fever – spotted fever group rickettsioses, including Rocky Mountain spotted fever; nos – not otherwise specified. Data extracted from Morbidity and Mortality Weekly Reports, 1987-2014.